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Relevant bibliographies by topics / Railway signalling system

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Academic literature on the topic 'Railway signalling system'

Author: Grafiati

Published: 7 August 2021

Last updated: 24 April 2022

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Journal articles on the topic "Railway signalling system"

1

Kumar, Nikesh, and Kong Fah Tee. "Reliability and Inspection Modelling of Railway Signalling Systems." Modelling 2, no. 3 (2021): 344–54. http://dx.doi.org/10.3390/modelling2030018.

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The railway is one of the most prominent models of transportation across the globe and it carries a large number of people, thus requiring high reliability, maintainability and safety. The reliability of railways mostly depends on an effective signalling system, making it one of the critical parts of railway operation. A signalling system is part of a large array of systems with interconnected components and subcomponents. Therefore, there is a need to make the signalling system more reliable and optimised with enhanced fault detection. Proper inspection and maintenance are required to make the signalling system reliable and safe. In this study, different inspection modelling techniques are applied to find the reliability of the signalling system. The signalling system has been divided into subsystems (signal unit, track unit, point-and-point machine) considering their importance and their effects on the failure rate of the entire signalling system. Inspection modelling of each subsystem has been conducted to provide the basis for the entire signalling system. A case study has been investigated to validate the model developed in one of the busiest tracks in eastern India. The obtained data thus are used to analyse the inspection pattern of signalling subsystems. Special attention to maintenance for inspection activities and logistics support has been taken into consideration, which is required to improve the reliability and maintainability of signalling subsystems and systems to make the railway signalling system sustainable in the long run.

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Stankaitis, Paulius, Alexei Iliasov, Tsutomu Kobayashi, Yamine Aït-Ameur, Fuyuki Ishikawa, and Alexander Romanovsky. "A refinement-based development of a distributed signalling system." Formal Aspects of Computing 33, no. 6 (2021): 1009–36. http://dx.doi.org/10.1007/s00165-021-00567-y.

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AbstractThe decentralised railway signalling systems have a potential to increase capacity, availability and reduce maintenance costs of railway networks. However, given the safety-critical nature of railway signalling and the complexity of novel distributed signalling solutions, their safety should be guaranteed by using thorough system validation methods. To achieve such a high-level of safety assurance of these complex signalling systems, scenario-based testing methods are far from being sufficient despite that they are still widely used in the industry. Formal verification is an alternative approach which provides a rigorous approach to verifying complex systems and has been successfully used in the railway domain. Despite the successes, little work has been done in applying formal methods for distributed railway systems. In our research we are working towards a multifaceted formal development methodology of complex railway signalling systems. The methodology is based on the Event-B modelling language which provides an expressive modelling language, a stepwise development and a proof-based model verification. In this paper, we present the application of the methodology for the development and verification of a distributed protocol for reservation of railway sections. The main challenge of this work is developing a distributed protocol which ensures safety and liveness of the distributed railway system when message delays are allowed in the model.

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Mikulčić, Matea, and Tomislav Josip Mlinarić. "Railway Capacity Enhancement with Modern Signalling Systems – A Literature Review." Promet - Traffic&Transportation 33, no. 1 (2021): 141–52. http://dx.doi.org/10.7307/ptt.v33i1.3664.

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In times of ever stronger awareness of environmental protection and potentiation of a beneficial modal split, the railway sector with efficient asset utilization and proper investment planning has the highest chance of meeting customer expectations and attracting new users more effectively. Continuous increase in railway demand leads to an increase in the utilization of railway infrastructure, and the inevitable lack of capacity, a burning problem that many national railways are continually facing. To address it more effectively, this paper reviews available methodologies for railway capacity determination and techniques for its enhancement in the recent scientific literature. Particular focus is given to the possibility of increasing railway capacity through signalling systems and installing the European Train Control System (ETCS). The most important relationships with segments of existing research have been identified, and in line with this, the directions for a potential continuation of research are suggested.

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Watson, Inara. "High-Speed Railway." Encyclopedia 1, no. 3 (2021): 665–88. http://dx.doi.org/10.3390/encyclopedia1030053.

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Union Internationale des Chemins (UIC) defines the high-speed railway (HSR) as a high-speed railway system that contains the infrastructure and the rolling stock. The infrastructure can be newly built dedicated lines enabled for trains to travel with speed above 250 km/h or upgraded conventional lines with a speed up to 200 or even 220 km/h. HSR requires specially built trains with increased power to weight ratio and must have an in-cab signalling system as traditional signalling systems are incapable of above 200 km/h.

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NISKA, STEFAN, HÅKAN SCHUNNESSON, and UDAY KUMAR. "MEASUREMENTS AND ANALYSIS OF ELECTROMAGNETIC INTERFERENCE IN A RAILWAY SIGNAL BOX — A CASE STUDY." International Journal of Reliability, Quality and Safety Engineering 18, no. 03 (2011): 285–303. http://dx.doi.org/10.1142/s0218539311004147.

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In general railway infrastructure operates in a complex and non homogeneous environment where low power electronics has to function in the similar environment as large voltages and currents from the trains. The environment close to the railway tracks is heavily polluted by electromagnetic (EM) noise from the railway systems itself. The reliability of the railway signalling-, communication-, and control system depends on the degree of isolation from EM noise. It is important to observe the real system and its characteristics in real situation. The complexity of the infrastructure is not easy to simulate or calculate, and therefore measurements were performed on real system in operation. A large number of measurements were made on site at signalling systems and installations of Banverket (the Swedish Rail Administration). By studying and analyzing these measurements, the extent of EMI (Electromagnetic interferences) -related faults can be estimated. In situ measurements must be performed on systems that have obvious problems show increasingly fast and high transients in a DC signalling subsystem. The statistics also show an increased activity of transients during a period before a certain circuit in this system gets out of order. The presented results clearly show how the electromagnets interference effects he signalling system in a signalling box. The measurements in this case study have provided new information on a railway subsystem and have revealed frequencies that are difficult to explain at this moment.

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Morant, Amparo, Anna Gustafson, Peter Söderholm, Per-Olof Larsson-Kråik, and Uday Kumar. "Safety and availability evaluation of railway operation based on the state of signalling systems." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 231, no. 2 (2016): 226–38. http://dx.doi.org/10.1177/0954409715624466.

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A framework is presented to evaluate the safety and availability of the railway operation, and quantifying the probability of the signalling system not to supervise the railway traffic. Since a failure of the signalling systems still allows operation of the railway, it is not sufficient to study their effect on the railway operation by considering only the failures and delays. The safety and availability are evaluated, handling both repairs and replacements by using a Markov model. The model is verified with a case study of Swedish railway signalling systems with different scenarios. The results show that the probability of being in a state where operation is possible in a degraded mode is greater than the probability of not being operative at all, which reduces delays but requires other risk mitigation measures to ensure safe operation. The effects that different improvements can have on the safety and availability of the railway operation are simulated. The results show that combining maintenance improvements to reduce the failure rate and increase the repair rate is more efficient at increasing the probability of being in an operative state and reducing the probability of operating in a degraded state.

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Szmel, Dariusz, and Dominik Wawrzyniak. "Application of FMEA method in railway signalling projects." Journal of KONBiN 42, no. 1 (2017): 93–110. http://dx.doi.org/10.1515/jok-2017-0020.

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Abstract The article presents the FMEA method application, which is relevant in verification of design of two separated railway signalling systems. The efficiency of the method at the stage of the design was discussed. The method was identified as an important element of safety management process and as safety analysis method, which is included in the Safety Case and is applied for the sake of safety arguments and its assessment. Safety process management comprises several phases and appropriate actions, linked with each other in the way to create safety life cycle consistent with system life cycle. The safety case is a set of documents demonstrating that the product is compliant with defined safety requirements including analysis that indicates the correctness of the design and the correct reaction of the system to the failures, with appropriate and requested fail-safe reaction. It is necessary that railway signalling system should fulfil SIL4 requirement and remain safe in case of occurrence any kind of single failure of the equipment considered as possible.

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Szmel, Dariusz, Wiesław Zabłocki, Przemysław Ilczuk, and Andrzej Kochan. "Selected issues of risk assessment in relation to railway signalling systems." WUT Journal of Transportation Engineering 127 (December 1, 2019): 81–91. http://dx.doi.org/10.5604/01.3001.0013.7293.

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The selected methods of the risk assessment and analysis of signaling railway systems about the whole railway system were introduced in the article. The selected methods applied at the first stage of safety requirements definition within the preliminary system definition described at a high level of abstraction will be considered. It will be discussed the application of a holistic approach with the management of residual risk. The risk models will be presented and steps of assessing, analyzing, and evaluating risk, including hazard identification, consequences analysis, and selection of risk acceptance principles. The article's key aspect will be the determination of quantitative safety targets based on the THR indicator as an important parameter for further hazard analysis of the system, particularly in computer application. Normative and legislation requirements in the scope of risk assessment for the railway system will be considered, including the interoperability and safety directives and decrees regulations.

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Li, Zhiyu, and Shanghe Liu. "Interference mechanism analysis and mitigation measures with railway signalling equipment from harmonics in the traction system." Transportation Safety and Environment 2, no. 4 (2020): 271–82. http://dx.doi.org/10.1093/tse/tdaa023.

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Abstract With the development of high-speed railway and heavy-haul rail transport in China, a large number of new types of electric locomotives and electric multiple units have been put into operation, improving the efficiency and equipment quality of railway transportation. However, harmonics emitted from the traction system and locomotives often interfere with the railway signalling equipment, which can lead to critical malfunction of the equipment. Based on field test data, this paper analyses the interference coupling mechanism and magnitude of traction harmonics to the signalling equipment using a three-element method of interference. It examines the three essential elements of electromagnetic interference, studies harmonic mitigation measures and proposes to solve the problem of inteference with signalling equipment by installing a passive high-pass filter in the coupling path. After comparing the effects of several types of filters using simulation tests, this paper verified the validity of the method and concluded that a second-order passive filter is the optimal solution for harmonic interference mitigation.

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Pawlik, M. "Analyse of the Challenges for Safe Transition from Individual Intraoperable Railway Systems to the Single European Interoperable Railway System." Archives of Civil Engineering 62, no. 4 (2016): 169–80. http://dx.doi.org/10.1515/ace-2015-0114.

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AbstractDue to different reasons a significant modal shift from railway to road transport took place over last decades. The basic reasons are pointed in the paper introduction together with contradicting transport policy taking into account environmental and economical challenges. Political vision to stimulate modal shift from road and air to railway cannot become true without achieving railway technical and operational interoperability. Paper describes wide range of technical barriers between individual intraoperable railway systems in civil engineering structures, traction power supply, control command and signalling and the ways, which are being applied to ensure stepwise converging of the technical solutions taking into account safety and technical compatibility, as well as other essential requirements, namely: reliability, accessibility, health and environment.

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Dissertations / Theses on the topic "Railway signalling system"

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Lanci, Paolo. "LoRa-based railway signalling system for secondary lines." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2022.

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The thesis proposes a novel Medium Access Control (MAC) protocol designed to work in a new LoRa-based railway signalling system able to locate and verify the integrity of the train over the track. This new signalling system has been thought to realize a cost-effective solution for the implementation of the ERTMS-ETCS in secondary regional lines. However, the MAC protocols already present in literature are not able to meet the stringent requirement of the system neither in terms of latency nor in terms of coverage. In the thesis, a synchronous beacon-based protocol, able to respect both the coverage and the latency requirement of the system, is proposed. It can be considered as the sum of two different communication protocols: one based on a start topology and the other based on a linear multi-hop topology. To evaluate the performance of the protocol a dynamic time-discrete event simulator, written in Python, was created accounting for all the application features: it implements both architectures, the whole synchronization procedure and the data transmission phase.

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Tana, Kebron Temedo. "Interoperability Study of the European and Chinese Railway Signalling Systems : Case study in Ethiopia." Thesis, KTH, Transportplanering, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301302.

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The railway industry in Ethiopia has been an important way of communication and transportation for a long time. It is a developing sector with many national plans for future investments. However, the current major corridors of Ethio-Djibouti and Awash-Weldiya have interoperability issues due to two different signalling systems being used. Thus, this study was undertaken with the objectives of assessing technical interoperability of the Chinese signalling system (CTCS) and the European signalling system (ETCS), identifying a possible technical solution regarding the interoperability issues, and assessing the economic benefits of a harmonized system. Compatibility of the two signalling systems was analyzed particularly with respect tothe technical configurations by thoroughly investigating each system’s features and making interviews and having discussions with professionals who worked with the two systems. In addition, a life cycle cost analysis of the EthioDjibouti signalling system was done with data obtained from Ethiopian Railway Corporation and compared with average life cycle costs of ETCS level 1. After analyzing each system, two possible technical solutions were found to achieve interoperability between the two systems used in Ethiopia currently. The first technical solution is upgrading EthioDjiboutirailway line from the current CTCS level 0 to CTCS level 2 to be compatible with the new AwashWeldiya line which will use ETCS level 1. The second technical solution to make the two systems interoperable is to install ERTMS as an overlay on the existing CTCS level 0 as ERTMS is designed as an overlay system that could be installed on top of an existing national infrastructure and vehicles. However, these technical solutions have to be tested in laboratory and onsite with respect to their practical and economical feasibility.<br>Järnvägsindustrin i Etiopien har länge varit viktig för kommunikation och transport. Det är en sektor under utveckling med många nationella planer för framtida investeringar. De nuvarande korridorerna i EthioDjibouti och AwashWeldiya har emellertid interoperabilitetsproblem på grund av två olika signalsystem. Detta examensarbete har analyserat kompatibiliteten för de två signalsystemen särskilt med avseende på de tekniska konfigurationerna genom att noggrant undersöka varje systems funktioner och genom intervjuer och diskussioner med yrkesverksamma somhar arbetat med de två systemen. Dessutom genomfördes en livscykelkostnadsanalys av EthioDjibouti signalssystemet med den data som erhölls från Ethiopian Railway Corporation. Efter analys av varje system hittades två möjliga tekniska lösningar för att uppnå interoperabilitet mellan de två systemen som används i Etiopien för närvarande. Den första tekniska lösningen är att uppgradera EthioDjiboutis järnvägslinje från nuvarande CTCS nivå 0 till CTCS nivå 2 för att vara kompatibel med den nya AwashWeldiyalinjen som kommer att använda ETCS nivå 1. Den andra tekniska lösningen för att göra de två systemen interoperabla är att installera ERTMS som ett överlägg på det befintliga CTCS0 signalsystemet, eftersom ERTMS är utformat som ett överläggssystem som kan installeras ovanpå en befintlig nationell infrastruktur. Dessa tekniska lösningar måste dock testas i laboratorium och i fält med avseende på deras praktiska och ekonomiska genomförbarhet.

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Melim, Pedro. "Strategic analysis about railway signalling system evolution to ETCS level 2 and 3." Thesis, KTH, Trafik och logistik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-103346.

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Zhu, Anlin. "Railway Infrastructure Management - System Engineering and Requirement Management." Thesis, KTH, Spårfordon, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-228192.

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Rail Control Solutions (RCS) is one division of Bombardier Transportation, aimed at optimising flow of trains. OPTIFLO is a new solution package within RCS, providing services and solutions to address challenges in modern railway infrastructures worldwide. Infrastructure Management (IM) Service is a significant sub-module under OPTIFLO, performing monitoring and diagnostic functionalities for each impacted system or component in railway signalling systems to continuously improve safety, reliability and availability. Requirement management is a significant stage while dealing with engineering problems. In this master thesis project, three modules in railway signalling scope are focused, including system level Infrastructure Management, sub-system level Maintenance and Diagnostic Centre (MDC) and sub-system level Remote Sensor Unit (RSU). For each part, requirement managements have been implemented, referring to CENELEC standards where necessary. The work starts with the draft Requirement Specification for IM and then identify the requirements related to diagnostics and performance in each sub-system. Both links between the requirements in different modules and links between the requirements and their test cases are built from the requirement management tool DOORS to realize verification and validation following the system engineering process. Finally, the standard documentations "System Requirement Specification" for each impacted module that are mostly concerned in the thesis have been released.<br>Rail Control Solutions (RCS) är en del av Bombardier Transportation, som syftar till att optimera flödet av tåg. OPTIFLO är ett nytt programspaket inom RCS, som erbjuder tjänster och lösningar för att hantera utmaningar inom modern järnvägsinfrastruktur världen över. Infrastrucutre Management (IM) Service är en viktig delmodul under OPTIFLO, som utför övervakning och diagnostiska funktioner för varje påverkat system eller komponent i järnvägssignalsystem för att kontinuerligt förbättra säkerhet, tillförlitlighet och tillgänglighet. Kravhantering är ett viktigt steg när man arbetar med tekniska problem. Det här mastersprojektet är inriktat på tre moduler inom järnvägssignalområdet: systemnivå Infrastructure Management, underhållssystem för Maintenance and Diagnostic Centre (MDC) och delsystemnivå Remote Sensor Unit (RSU). För varje del har kravhantering implementerats, med hänvisning till CENELEC-standarder vid behov. Arbetet har utgått från utkast till kravspecifikation för IM och identifierat kraven för diagnostik och prestanda i varje delsystem. Både kopplingar mellan kraven i olika moduler och kopplingar mellan kraven och deras testfall är byggda i systemet DOORS för att realisera verifiering och validering i en systemteknisk process. Slutligen släpps standarddokumentationen "Systemkrav Specifikation" för de moduler som behandlar i detta arbete.

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Sandman, Aubrey Max. "Errors - a positive approach." Thesis, City University London, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.255353.

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Niedecken, Timon. "Optimized maintenance budget planning for DB Cargo locomotives." Thesis, KTH, Spårfordon, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-299366.

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In a regional railway signalling system, object controllers are the devices responsible for controlling Track Side Equipment and act as interfaces for TSE with the interlocking computer and the Traffic control system. However, associated cabling (signal and power cabling) and civil works pose a major capital investment and it is a source of significant Capital and Operational expenses, particularly in rural areas, where accessibility andconnectivity to power grid and to the interlocking are a problem. Furthermore, cables/signalling equipment are exposed to sabotage and theft in such areas. This can increase the total Life Cycle Cost even further. The Shift2Rail research programme, which was initiated by the European Union and railway stakeholders, tries to address this issue, and revamp the Object Controller concept through the project “TD2.10 Smart radio connectedwayside object controller”, where the aim is to develop a Smart Wayside Object Controller (SWOC). A SWOC is capable of wireless communication between central interlocking and TSE as well as decentralization of interlocking logic. These innovations can reduce the cabling required, increase the availability of diagnostic data, thus reducing maintenance and operational costs and can lead to power saving by utilizing local power sources. The most important impact of the SWOC is a significant reduction of CAPEX, OPEX and of total LCC for an installation utilizing SWOCs, instead of typical OCS. This work focuses on estimating the LCC of a SWOC system and to compare it with a conventional OCS by developing an LCC model that covers both cases, as well as to use this model to examine when it is more profitable to implement a SWOC, instead of an OCS system. This is done by utilizing LCC analysis and combining a variety of methods in a parametric study. To that extend, a thorough analysis of a modern regional railway signallingsystem, as well as the basis for LCCA are being discussed. At the same time, both OC and SWOC systems are being described and factors affecting their cost discussed. The methodology is comprised of the LCC modelling part as well as the collection of methods and techniques used to calculate the LCC of OC/SWOC systems and to estimate the costs of different sub-models and parameters of the process. For the modelling process, the station of Björbo was chosen, which operates under ERTMS-R system, but for the sake of the analysis it is assumed that the typical base system in place is an OCS and together withthe existing track layout and equipment it is used as the basis of the analysis. Finally, the formed LCC model is being used in a parametric study to examine how the LCC is affected by using OC or SWOC as well as how LCC responds to changes in parameters such as number of OC/SWOC, traffic density and local power installation cost for the Björbo station.<br>I ett regionalt järnvägssignalsystem är utdelar de enheter som ansvarar för att kontrollera spårutrustning och fungerar de som gränsyta för spårutrustning med ställverksdatorn och tågtrafikledning systemet. Dock, tillhörande kablar (signalkablar ock kraftkablar), samt anläggningsinfrastruktur utgör en stor kapitalinvestering och de är en källa till märkbar kapitalkostnad och driftskostnader, särskilt på landsbygdsområden, där tillgänglighet och anslutning till elnätet och ställverket är problematisk. Dessutom, kablar och signalutrustning utsätts för stöld och sabotage i sådana områden. Detta kan öka den totala livscykelkostnaden ytterligare. Shift2rail forskningsprogram, som genomförs av EU och järnvägsintressenter, försöker att ta itu med problemet och modernisera utdelar konceptet genom projektet “TD2.10 Smart Radio Connected Wayside Object Controller”, där målet är att utveckla en Smart Spårutrustning Utdelar, så kallade SWOC. En SWOC har kapacitet för trådlös kommunikation mellan central ställverket och spårutrustning, samt decentralisering av satällverkslogiken. Dessa innovationer kan minska nödvändig kabeldragning, öka tillgängligheten av diagnostiska data, vilket minskar underhålls- och driftskostnader och kan leda till energibesparing genom att använda lokala kraftkällor. Den viktigaste effekten av SWOC är en betydande minskning av kapitalkostnader, driftskostnader och totala livscykelkostnaden för en installation som använder SWOC istället för typiska utdelningsystemet. Detta examensarbete fokuserar på att uppskatta LCC för ett SWOC-system och jämföra det med en konventionell utdelingsystem genom att utveckla en LCC-modell som täcker båda fallen, samt att använda denna modell för att undersöka när det är mer lönsamt att implementera en SWOC istället av ett typiskt utdelingsystem. Detta görs genom att använda LCC-analys och kombinera en mängd olika metoder i en parametrisk studie. För att göradetta genomförs en grundlig analys av ett modernt regionalt järnvägssignalsystem, samt grunden för livscykelanalys. Samtidigt beskrivs både ett typiskt utdelingssystem - och SWOC-system samt faktorer som påverkar deras kostnad deskuteras. Metoden består av LCC-modelleringsdelen samt insamling av metoder och tekniker som används för att beräkna LCC för OC / SWOC-system och för att uppskatta kostnaderna för olika delmodeller och parametrar för processen. För modelleringsprocessen valdes stationen i Björbo, som arbetar under ERTMS-R-systemet, men för analysens skull antas att det typiska bassystemet på plats är en typisk OCS och tillsammans med befintlig planritning ochkabelplan är används som grund för analys. Slutligen används den bildade LCC-modellen i en parametrisk studie för att undersöka hur LCC påverkas genom att använda OC eller SWOC samt hur LCC reagerar på förändringar i parametrar såsom antal OC / SWOC, trafiktäthet och lokala kraftinstallationskostnader för Björbo-stationen.

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Zarov, Filipp. "Life Cycle Cost of Smart Wayside Object Controller." Thesis, KTH, Spårfordon, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-299368.

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In a regional railway signalling system, object controllers are the devices responsible for controlling Track Side Equipment and act as interfaces for TSE with the interlocking computer and the Traffic control system. However, associated cabling (signal and power cabling) and civil works pose a major capital investment and it is a source of significant Capital and Operational expenses, particularly in rural areas, where accessibility andconnectivity to power grid and to the interlocking are a problem. Furthermore, cables/signalling equipment are exposed to sabotage and theft in such areas. This can increase the total Life Cycle Cost even further. The Shift2Rail research programme, which was initiated by the European Union and railway stakeholders, tries to address this issue, and revamp the Object Controller concept through the project “TD2.10 Smart radio connectedwayside object controller”, where the aim is to develop a Smart Wayside Object Controller (SWOC). A SWOC is capable of wireless communication between central interlocking and TSE as well as decentralization of interlocking logic. These innovations can reduce the cabling required, increase the availability of diagnostic data, thus reducing maintenance and operational costs and can lead to power saving by utilizing local power sources. The most important impact of the SWOC is a significant reduction of CAPEX, OPEX and of total LCC for an installation utilizing SWOCs, instead of typical OCS. This work focuses on estimating the LCC of a SWOC system and to compare it with a conventional OCS by developing an LCC model that covers both cases, as well as to use this model to examine when it is more profitable to implement a SWOC, instead of an OCS system. This is done by utilizing LCC analysis and combining a variety of methods in a parametric study. To that extend, a thorough analysis of a modern regional railway signalling system, as well as the basis for LCCA are being discussed. At the same time, both OC and SWOC systems are being described and factors affecting their cost discussed. The methodology is comprised of the LCC modelling part as well as the collection of methods and techniques used to calculate the LCC of OC/SWOC systems and to estimate the costs of different sub-models and parameters of the process. For the modelling process, the station of Björbo was chosen, which operates under ERTMS-R system, but for the sake of the analysis it is assumed that the typical base system in place is an OCS and together with the existing track layout and equipment it is used as the basis of the analysis. Finally, the formed LCC model is being used in a parametric study to examine how the LCC is affected by using OC or SWOC as well as how LCC responds to changes in parameters such as number of OC/SWOC, traffic density and local power installation cost for the Björbo station.<br>I ett regionalt järnvägssignalsystem är utdelar de enheter som ansvarar för att kontrollera spårutrustning och fungerar de som gränsyta för spårutrustning med ställverksdatorn och tågtrafikledning systemet. Dock, tillhörande kablar (signalkablar ock kraftkablar), samt anläggningsinfrastruktur utgör en stor kapitalinvestering och de är en källa till märkbar kapitalkostnad och driftskostnader, särskilt på landsbygdsområden, där tillgänglighet och anslutning till elnätet och ställverket är problematisk. Dessutom, kablar och signalutrustning utsätts för stöld och sabotage i sådana områden. Detta kan öka den totala livscykelkostnaden ytterligare. Shift2rail forskningsprogram, som genomförs av EU och järnvägsintressenter, försöker att ta itu med problemet och modernisera utdelar konceptet genom projektet “TD2.10 Smart Radio Connected Wayside Object Controller”, där målet är att utveckla en Smart Spårutrustning Utdelar, så kallade SWOC. En SWOC har kapacitet för trådlös kommunikation mellan central ställverket och spårutrustning, samt decentralisering av satällverkslogiken. Dessa innovationer kan minska nödvändig kabeldragning, öka tillgängligheten av diagnostiska data, vilket minskar underhålls- och driftskostnader och kan leda till energibesparing genom att använda lokala kraftkällor. Den viktigaste effekten av SWOC är en betydande minskning av kapitalkostnader, driftskostnader och totala livscykelkostnaden för en installation som använder SWOC istället för typiska utdelningsystemet. Detta examensarbete fokuserar på att uppskatta LCC för ett SWOC-system och jämföra det med en konventionell utdelingsystem genom att utveckla en LCC-modell som täcker båda fallen, samt att använda denna modell för att undersöka när det är mer lönsamt att implementera en SWOC istället av ett typiskt utdelingsystem. Detta görs genom att använda LCC-analys och kombinera en mängd olika metoder i en parametrisk studie. För att göradetta genomförs en grundlig analys av ett modernt regionalt järnvägssignalsystem, samt grunden för livscykelanalys. Samtidigt beskrivs både ett typiskt utdelingssystem - och SWOC-system samt faktorer som påverkar deras kostnad deskuteras. Metoden består av LCC-modelleringsdelen samt insamling av metoder och tekniker som används för att beräkna LCC för OC / SWOC-system och för att uppskatta kostnaderna för olika delmodeller och parametrar för processen. För modelleringsprocessen valdes stationen i Björbo, som arbetar under ERTMS-R-systemet, men för analysens skull antas att det typiska bassystemet på plats är en typisk OCS och tillsammans med befintlig planritning ochkabelplan är används som grund för analys. Slutligen används den bildade LCC-modellen i en parametrisk studie för att undersöka hur LCC påverkas genom att använda OC eller SWOC samt hur LCC reagerar på förändringar i parametrar såsom antal OC / SWOC, trafiktäthet och lokala kraftinstallationskostnader för Björbo-stationen.

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Gupta, Narendra Kumar. "Inductive interference into a lineside signalling cable in A.C. electric railway systems." Thesis, University of Manchester, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252792.

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Michailidis, Georgios. "Train-borne Antennas : A business case study." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-175749.

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The global rail network every year is used to transport approximately 21 billion of people and 10 billion tons of cargo. These numbers is estimated that are going to increase in the future. Railway will become the transportation of the future. The actors involved in the rail market realizing these needs started to invest funds to upgrade both the network and the electronic systems on the trains to meet the demands and attract even more customers. Currently two different electronic systems are installed on-board trains, one related to safety and security and the other for passenger services. For safety and security two different systems have deployed for signaling and train control. The first one is ERTMS system that is mainly deployed in Europe, China and other regions of the world using GSM-R technology operating at 900 MHz while the other one is solely deployed in the USA operating at 220 MHz. For passenger-services more and more operators install Wi-Fi systems on-board the train. Each of these systems has different requirements to function. The common factor of these platforms is the train-borne antenna, which plays an active role to all the systems and can improve the quality of the services provided. SMARTEQ having experience in the transportation sector, more specifically in trucks wanted to explore this growth of rail transport followed by huge investments will create openings to enter the market and expand their business portfolio. The purpose of this report is to deploy a business case for train-antennas in order to help SMARTEQ decide if there is value in the rail sector. To achieve this goal a market analysis was conducted, followed by a technical description of the systems and the needs that exist on antennas and in the end concluding with a business model. This study reveals that antenna-rail market is really difficult to enter for a new company not related to train industry and needs proper acquaintances and partnerships to become a leading supplier. In addition due to the oligopoly of the market, competition is really high and needs a unique and competitive solution both price and technology-wise to attract the end customer.

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Wu, Kuo-Chang, and 吳國彰. "Case Study on Railway Signalling and Power Supply Systems." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/ncv732.

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碩士<br>中原大學<br>電機工程研究所<br>102<br>This paper presents Taiwan High Speed Rail turnout control box damage caused by the lightning and Taipei MRT Mucha line third rail short circuit case analysis. The overhead ground wire of Taiwan High Speed Rail uses for shielding direct lightning. When the lightning strikes the overhead ground wire, the lightning current will flow at both upstream and downstream directions on the overhead ground wire and into the earth. The lightning surge not only causes the over-voltage in the overhead ground wire but also forms differences in a ground potential rise among the control equipment. As a result, these turnout control equipment are vulnerable to be damaged. From the above scenario, this thesis will survey effects of the lightning current on the turnout control box through the simulation software, namely, Alternative Transient Program (ATP). In addition, the following part of the thesis is to survey the Taipei MRT system supplied by a DC traction power source under short-circuit contingencies occurred at the third rail. In order to handle this problem, a DC fault current analysis has been performed due to the actual measurement data recorded. Moreover, three DC fault detection methods are proposed in the thesis to improve the operation of the MRT system. Consequently, instrumentation and control equipment in the MRT system can be effectively protected from the significant impacts of the DC short-circuit current.

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Books on the topic "Railway signalling system"

1

Consultants, SLI. Regional Study on railway telecommunications and signalling: Final report. Canadian Transport Technical Services Group, 1988.

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Palmer, U. W. The application of knowledge-based systems to railway signalling scheme design. UMIST, 1993.

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England) Institution of Engineering and Technology Professional Development Course on Railway Signalling and Control Systems (2010 Birmingham. The Institution of Engineering and Technology Professional Development Course on Railway Signalling and Control Systems: RSCS 2010 : 7-11 June 2010, Austin Court, Birmingham, UK. IET, 2010.

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Eighth Residential Course on Railway Signalling and Control Systems. Inspec/Iee, 2000.

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Ellis' British Railway Engineering Encyclopaedia: Being a compendious reference of specialist engineering terms in common use upon the Railways, Light Railways, Tramways and other guided transport systems of the United Kingdom, its Crown Dependencies and the Republic of Ireland. 2nd ed. Lulu.com, 2010.

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Carey, Michael S. A Position Paper on Human Factors Approaches for the Design of VDU Interfaces to Computer-based Railway Signalling Systems. Health and Safety Executive (HSE), 1993.

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Engineers, Institution of Electrical. Ninth Residential Course on Railway Signalling and Control Systems: Robinson College Executive Centre st Neots, Cambridgeshire, Uk 18-22 March 2002. Inspec/Iee, 2003.

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Book chapters on the topic "Railway signalling system"

1

Duggan, Peter R. "Safety Cases in the Railway Signalling Industry." In Lessons in System Safety. Springer London, 2000. http://dx.doi.org/10.1007/978-1-4471-0883-2_4.

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Rástočný, Karol, Juraj Ždánsky, and Peter Nagy. "Some Specific Activities at the Railway Signalling System Development." In Telematics in the Transport Environment. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-34050-5_39.

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Esteban, Amanda, and Sonia Solanas. "The Viability of TETRA for ETCS Railway Signalling System." In Lecture Notes in Computer Science. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-38921-9_3.

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Hiraguri, Shigeto, Koji Iwata, and Ikuo Watanabe. "A Method of Evaluating Railway Signalling System Based on RAMS Concept." In FORMS/FORMAT 2010. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-14261-1_10.

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Vanit-Anunchai, Somsak. "Application of Coloured Petri Nets in Modelling and Simulating a Railway Signalling System." In Lecture Notes in Computer Science. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45943-1_15.

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Lenzini, Gabriele, and Marinella Petrocchi. "Modelling of Railway Signalling System Requirements by Controlled Natural Languages: A Case Study." In From Software Engineering to Formal Methods and Tools, and Back. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-30985-5_29.

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Anselmi, A., C. Bernardeschi, A. Fantechi, et al. "An Experience in Formal Verification of Safety Properties of a Railway Signalling Control System." In Safe Comp 95. Springer London, 1995. http://dx.doi.org/10.1007/978-1-4471-3054-3_33.

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Schlehuber, Christian, Erik Tews, and Stefan Katzenbeisser. "IT-Security in Railway Signalling Systems." In ISSE 2014 Securing Electronic Business Processes. Springer Fachmedien Wiesbaden, 2014. http://dx.doi.org/10.1007/978-3-658-06708-3_4.

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Morant, Amparo, Anna Gustafson, and Peter Söderholm. "Safety and Availability Evaluation of Railway Signalling Systems." In Lecture Notes in Mechanical Engineering. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23597-4_22.

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Løkberg, Ola, and Øystein Skogstad. "Functional Apportioning of Safety Requirements on Railway Signalling Systems." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11563228_22.

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Conference papers on the topic "Railway signalling system"

1

Grover, Jitender, and Anjali. "Wireless Sensor Network in Railway Signalling System." In 2015 Fifth International Conference on Communication Systems and Network Technologies (CSNT). IEEE, 2015. http://dx.doi.org/10.1109/csnt.2015.28.

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Marriot, D. "Installation & testing of the signalling system." In 11th IET Professional Development Course on Railway Signalling and Control Systems. Institution of Engineering and Technology, 2006. http://dx.doi.org/10.1049/ic.2006.0695.

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Goddard, E. "Signal and Control within the Railway System." In 11th IET Professional Development Course on Railway Signalling and Control Systems. Institution of Engineering and Technology, 2006. http://dx.doi.org/10.1049/ic.2006.0674.

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Marriott, D. "Installation and testing of the signalling system." In IET Professional Development Course on Railway Signalling and Control Systems (RSCS 2008). IEE, 2008. http://dx.doi.org/10.1049/ic:20080372.

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Marriott, D. "Installation and testing of the signalling system." In IET Professional Development Course on Railway Signalling and Control Systems (RSCS 2012). IET, 2012. http://dx.doi.org/10.1049/ic.2012.0050.

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Marriott, D. "Installation and testing of the signalling system." In IET Professional Development Course on Railway Signalling and Control Systems (RSCS 2010). IET, 2010. http://dx.doi.org/10.1049/ic.2010.0098.

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Bastow, M. D. "Cyber Security of the Railway Signalling & Control System." In 9th IET International Conference on System Safety and Cyber Security (2014). Institution of Engineering and Technology, 2014. http://dx.doi.org/10.1049/cp.2014.0986.

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Hei, Xinhong, Sei Takahashi, and Nakamura Hideo. "Toward developing a Decentralized Railway Signalling System Using Petri Nets." In 2008 IEEE Conference on Robotics, Automation and Mechatronics (RAM). IEEE, 2008. http://dx.doi.org/10.1109/ramech.2008.4681511.

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Niu, Ru, Tao Tang, Oleg Lisagor, and John McDermid. "Automatic safety analysis of of computer-based railway signalling system." In 2011 IEEE International Conference on Service Operations and Logistics and Informatics (SOLI). IEEE, 2011. http://dx.doi.org/10.1109/soli.2011.5986609.

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Rouvray, P., P. Hallam, S. Danaher, and M. G. Thorpe. "The application of Matlab to railway signalling system fault modelling." In IEE Colloquium on The Use of Systems Analysis and Modelling Tools: Experiences and Applications. IEE, 1998. http://dx.doi.org/10.1049/ic:19980591.

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